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Basic Study of IPMSM with High-Temperature Superconducting Wire Rod
Okada, Kazuya,Morimoto, Shigeo,Sanada, Masayuki,Inoue, Yukinori Journal of International Conference on Electrical 2013 Journal of international Conference on Electrical Vol.2 No.2
It is important to improve the efficiencies of motors to overcome problems such as decreasing energy reserves and environmental pollution. Superconductors are promising for developing high-efficiency motors. However, superconducting wires must be kept in critical conditions and the AC loss needs to be minimized. In this paper, a design of a superconducting interior permanent magnet synchronous motor (IPMSM) is proposed that reduces the AC loss. The characteristics of superconducting and normal-conducting IPMSMs are compared. The proposed superconducting IPMSM has a low AC loss and a very high efficiency at low speeds.
Reduction of Fluorine, Boron and Heavy Metals Leaching from Coal Ash by Adding Fixation Chemicals
Makoto Iwasaki,Kaori Inoue,Kazuya Ikeshima,Tadashi Ishizuka 한국펄프·종이공학회 2006 한국펄프종이학회 기타 간행물 Vol.- No.-
In order to utilize coal fly ash (hereafter:coal ash ) discharged from coal boiler as a material for civil engineering usage such as snow melter or soil improver, we have to prevent leaching hazardous elements such as fluorine, boron and heavy metals from the coal ash because the leaching concentrations of some elements in the ash exceed the Japanese standards for environmental soil quality. Through the laboratory experiments and mill trials, we confirmed that the leaching concentrations of fluorine, boron and heavy metals were maintained below their environmental standards by mixing with fixation chemicals and curing for a short time.
Yoshihito Fujita,Koichi Inoue,Tasuku Sakamoto,Saya Yoshizawa,Maiko Tomita,Toshimasa Toyo’oka,Kazuya Sobue 대한마취통증의학회 2017 Korean Journal of Anesthesiology Vol.70 No.4
Background: Dexmedetomidine is a highly selective central α2-agonist used as a sedative in pediatric intensive care unit (PICU). However, little is known about the relationship between dexmedetomidine dose and its plasma concentration during long-term infusion. We have previously demonstrated that the sedative plasma dexmedetomidine concentration is moderately correlated with the administered dose in adults (r = 0.653, P = 0.001). We hypothesized that there would be a similar relationship between the sedative dexmedetomidine concentration and administered dose in infants. Methods: All patients admitted to the PICU at Nagoya City University Hospital, Japan, between November 2012 and March 2013 were eligible for inclusion in the study. Plasma dexmedetomidine concentration was measured by ultraperformance liquid chromatography coupled with tandem mass spectrometry. Results: We measured the plasma dexmedetomidine concentration in 203 samples from 45 patients. Of these, 96 samples collected from 27 patients < 2 years old were included in this study. All patients received dexmedetomidine at 0.12–1.40 μg/kg/h. The median administration duration was 87.6 hours (range: 6–540 hours). Plasma dexmedetomidine concentration ranged from 0.07 to 3.17 ng/ml. Plasma dexmedetomidine concentration was not correlated with the administered dose (r = 0.273, P = 0.007). The approximate linear equation was y = 0.690x + 0.423. Conclusions: In infants, plasma dexmedetomidine concentration did not exhibit any correlation with administered dose, which is not a reliable means of obtaining optimal plasma concentration.
Eiichiro Iwata,Hideki Shigematsu,Kazuya Inoue,Takuya Egawa,Masato Tanaka,Akinori Okuda,Yasuhiko Morimoto,Keisuke Masuda,Yusuke Yamamoto,Yoshihiro Sakamoto,Munehisa Koizumi,Yasuhito Tanaka 대한척추외과학회 2018 Asian Spine Journal Vol.12 No.1
Study Design: Case–control study. Purpose: The aim of the present study was to identify physical findings useful for differentiating between cervical spondylotic amyotrophy (CSA) and rotator cuff tears to prevent the misdiagnosis of CSA as a rotator cuff tear. Overview of Literature: CSA and rotator cuff tears are often confused among patients presenting with difficulty in shoulder elevation. Methods: Twenty-five patients with CSA and 27 with rotator cuff tears were enrolled. We included five physical findings specific to CSA that were observed in both CSA and rotator cuff tear patients. The findings were as follows: (1) weakness of the deltoid muscle, (2) weakness of the biceps muscle, (3) atrophy of the deltoid muscle, (4) atrophy of the biceps muscle, and (5) swallow-tail sign (assessment of the posterior fibers of the deltoid). Results: Among 25 CSA patients, 10 (40.0%) were misdiagnosed with a rotator cuff tear on initial diagnosis. The sensitivity and specificity of each physical finding were as follows: (1) deltoid weakness (sensitivity, 92.0%; specificity, 55.6%), (2) biceps weakness (sensitivity, 80.0%; specificity, 100%), (3) deltoid atrophy (sensitivity, 96.0%; specificity, 77.8%), (4) biceps atrophy (sensitivity, 88.8%; specificity, 92.6%), and (5) swallow-tail sign (sensitivity, 56.0%; specificity, 74.1%). There were statistically significant differences in each physical finding. Conclusions: CSA is likely to be misdiagnosed as a rotator cuff tear; however, weakness and atrophy of the biceps are useful findings for differentiating between CSA and rotator cuff tears to prevent misdiagnosis.
Medial and Lateral Discoid Menisci of Both Knees
( Hiroyuki Kan ),( Yuji Arai ),( Shuji Nakagawa ),( Hiroaki Inoue ),( Ginjiro Minami ),( Kazuya Ikoma ),( Hiroyoshi Fujiwara ),( Toshikazu Kubo ) 대한슬관절학회 2016 대한슬관절학회지 Vol.28 No.4
Discoid menisci on both the medial and lateral sides are rare, and there are very few reports on cases involving both sides. We report a case of a 52-year-old female with medial and lateral discoid menisci in both knees. Arthroscopy revealed the lateral menisci of both knees were complete discoid menisci, and partial meniscectomy was performed. The medial menisci were incomplete discoid menisci, but there were no findings of abnormal mobility or injury; therefore, the medial menisci were observed without treatment. At six months postoperatively, her pain and range of motion restrictions disappeared.
( Shuji Nakagawa ),( Yuji Arai ),( Hiroaki Inoue ),( Hiroyuki Kan ),( Manabu Hino ),( Shohei Ichimaru ),( Kazuya Ikoma ),( Hiroyoshi Fujiwara ),( Fumimasa Amaya ),( Teiji Sawa ),( Toshikazu Kubo ) 대한슬관절학회 2016 대한슬관절학회지 Vol.28 No.3
Purpose: This study compared the analgesic effects of local infiltration analgesia (LIA) and femoral nerve block (FNB) after total knee arthroplasty (TKA) and assessed factors associated with analgesia obtained by these two methods. Materials and Methods: Study subjects included 66 patients (72 knees) who underwent TKA for osteoarthritis of the knee. Pain visual analogue scale (VAS), the amount of analgesics used, number of days to achieve 90o of flexion of the knee joint, date of initiating parallel-bar walking, range of motion of the knee joint at discharge, and adverse events were investigated. Results: The VAS scores did not differ significantly between two groups, whereas the amount of analgesics used was significantly lower in the LIA group. Preoperative flexion contracture was significantly more severe in the LIA group with high VAS compared with low VAS. No serious adverse event occurred in the LIA or FNB group. Conclusions: The lower analgesic usage in the LIA group than the FNB group indicates that the analgesic effect of LIA was greater than that of singleshot FNB after TKA. There were no serious complications in either group. The postoperative analgesic effect of LIA was smaller in patients with severe than less severe preoperative flexion contracture.
(Original Articles) Effects of Nattokinase on Blood Pressure: A Randomized, Controlled Trial
KIM, Ji Young,KIM, Kyong-Chol,OGASAWARA, Kazuya,INOUE, Kenichi,PARK, Sungha,JANG, Yangsoo,LEE, Jong Ho,LIM, Hyo Hee,GUM, Si Nae Japanese Society of Hypertension 2008 Hypertension research Vol.31 No.8
The objective of this study was to examine the effects of nattokinase supplementation on blood pressure in subjects with pre-hypertension or stage 1 hypertension. In a randomized, double-blind, placebo-controlled trial, 86 participants ranging from 20 to 80 years of age with an initial untreated systolic blood pressure (SBP) of 130 to 159 mmHg received nattokinase (2,000 FU/capsule) or a placebo capsule for 8 weeks. Seventy-three subjects completed the protocol. Compared with the control group, the net changes in SBP and diastolic blood pressure (DBP) were ?5.55 mmHg (95% confidence interval [CI], ?10.5 to ?0.57 mmHg; p<0.05) and ?2.84 mmHg (CI, ?5.33 to ?0.33 mmHg; p<0.05), respectively, after the 8-week intervention. The corresponding net change in renin activity was ?1.17 ng/mL/h for the nattokinase group compared with the control group (p<0.05). In conclusion, nattokinase supplementation resulted in a reduction in SBP and DBP. These findings suggest that increased intake of nattokinase may play an important role in preventing and treating hypertension.